National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Light Snow Fog/Mist

32°F

0°C

Humidity 100%
Wind Speed N 7 mph
Barometer 29.84 in (1010.5 mb)
Dewpoint 32°F (0°C)
Visibility 0.75 mi
Wind Chill25°F (-4°C)
Last update 18 Jan 6:54 pm EST
Extended Forecast for

Watertown MA

Winter Weather Advisory January 18, 07:56pm until January 19, 07:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory January 18, 07:56pm until January 19, 07:00am

    NOW until 7:00am Mon

    Winter Weather Advisory

  • Tonight

    Low: 29 °F

    Snow then
    Snow Likely

  • M.L.King Day

    M.L.King Day: A chance of snow, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 34. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.

    High: 34 °F

    Chance Snow
    then Partly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 24. West wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 24 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 11. West wind 6 to 10 mph.

    Low: 11 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 31. South wind 6 to 8 mph.

    High: 31 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of snow after 1am. Mostly cloudy, with a low around 24. South wind around 8 mph. Chance of precipitation is 30%.

    Low: 24 °F

    Mostly Cloudy
    then Chance
    Snow

  • Thursday

    Thursday: A chance of snow before 8am, then a chance of rain between 8am and 5pm, then a chance of rain and snow after 5pm. Partly sunny, with a high near 40. Southwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 40 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Snow, mainly before 3am. Low around 29. North wind 3 to 5 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 5 inches possible.
M.L.King Day
A chance of snow, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 34. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.
Monday Night
Partly cloudy, with a low around 18. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.
Tuesday
Mostly sunny, with a high near 24. West wind 10 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly clear, with a low around 11. West wind 6 to 10 mph.
Wednesday
Mostly sunny, with a high near 31. South wind 6 to 8 mph.
Wednesday Night
A chance of snow after 1am. Mostly cloudy, with a low around 24. South wind around 8 mph. Chance of precipitation is 30%.
Thursday
A chance of snow before 8am, then a chance of rain between 8am and 5pm, then a chance of rain and snow after 5pm. Partly sunny, with a high near 40. Southwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday Night
A chance of snow before 7pm. Partly cloudy, with a low around 17. West wind around 8 mph. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 27. West wind 8 to 10 mph, with gusts as high as 21 mph.
Friday Night
Partly cloudy, with a low around 13. Southwest wind around 7 mph.
Saturday
Partly sunny, with a high near 24. West wind 7 to 9 mph.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 10. Northwest wind around 8 mph. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 18. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Watertown MA
 42.37°N 71.16°W (Elev. 46 ft)
Last Update:
7:52 pm EST Jan 18, 2026
Forecast Valid:
7pm EST Jan 18, 2026-6pm EST Jan 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation